Systemic Hypertension: Symptoms, Causes, Treatment

Question 1. Write a short note on systemic hypertension.
Or
Write about clinical features, etiology, complications, and management of systemic hypertension.
Or
Describe briefly secondary hypertension.
Or
Describe the etiology, clinical features, and management of hypertension.
Or
Write diagnosis and management of hypertension

Answer. Systemic hypertension is defined as systolic pressure equal to or above 140 mm Hg and diastolic pressure equal to or above 90 mm Hg measured on two or more diffrent occasions.

“Understanding systemic hypertension through FAQs: Symptoms, causes, and treatments explained”

Etiology

1. Renal disorders:
   • Renovascular stenosis
   • Parenchymal renal disease, particularly glomerulonephritis
   • Polycystic kidney disease
2. Endocrinal disorders:
   • Pheochromocytoma
   • Cushing’s syndrome
   • Primary hyperaldosteronism
   • Acromegaly
   • Hypothyroidism and hyperthyroidism
3. Drugs:
   1. Oral contraceptives
   2. Corticosteroids
   3. Sympathomimetic drugs
   4. Cyclosporine
   5. NSAIDs
4. Miscellaneous:
   • Toxemia of pregnancy
   • Coarctation of aorta
   • Raised intracranial pressure
   • Obstructive sleep apnoea.

“Importance of studying systemic hypertension for healthcare professionals: Questions explained”

“Common challenges in diagnosing and treating systemic hypertension effectively: FAQs provided”

Clinical Features systemic hypertension.

1. The majority of patients remain asymptomatic and are diagnosed on routine clinical examination.
2. Common symptoms are occipital headache, dizziness, palpitation, and fatigue.
3. Some of the patients may also present with symptoms that are related to target organ damage like epistaxis, hematuria, blurred vision, angina, and breathlessness.
4. Various symptoms pertaining to underlying cause can be present such as weight gain (Cushing’s syndrome), weight loss (thyrotoxicosis), episodic headache, palpitation, and sweating (pheochromocytoma)
5. History taking should include the age, sex, occupation, and lifestyle of the patient along with the history of smoking, diabetes mellitus, hyperlipidemia, alcohol and drug intake, and presence of hypertension in all family members.
6. Physical examination: Presence of truncal obesity (Cushing’s disease), palpable kidneys (polycystic kidneys), radio femoral delay (coarctation of the aorta), recurrent back pain, undiagnosed fever, and recurrent urinary infections suggest (chronic pyelonephritis) abdominal bruit (renovascular), may help in identifying the secondary cause of hypertension.
7. The signs of complications of hypertension such as heaving apex, 4th heart sound, loud aortic second heart sound, pulmonary crackles, and retinal changes may also be present.

Complications systemic hypertension.

1. Central nervous system complications:

1. Transient cerebral ischemic attacks
2. Cerebrovascular accidents (strokes)
3. Subarachnoid hemorrhage.
4. Hypertensive encephalopathy is characterized by very high blood pressure, it is characterized by transient disturbances in speech and vision, paresthesias, convulsion, disorientation, loss of consciousness, and papilledema. The neurological symptoms are reversible as blood pressure comes under control.

“Why is early detection critical for preventing complications from systemic hypertension? Answered”

2. Ophthalmic complications:

1. Hypertensive retinopathy: In this, there is a thickening of the walls of the retinal arterioles, diffuse or segmental narrowing of blood columns, varying width of the light reflex from vessel walls, arteriovenous nipping retinal hemorrhages, soft and hard exudates, and papilledema.
2. Severe retinopathy can cause visual field defects and blindness.

3. Cardiovascular complications:

1. Coronary artery disease (angina, myocardial infarction)
2. Left ventricular failure
3. Aortic aneurysm
4. Aortic dissection

4. Renal complications:

1. Proteinuria
2. Progressive renal failure

5. Malignant hypertension: It is a clinical syndrome of markedly high blood pressure with retinal hemorrhages and exudates. It also includes confusion, headache, vomiting, visual disturbances, and renal function deterioration.

Diagnosis is based on the investigations and clinical features

1. Basic investigations which are done in all patients:

1. Urine examination for protein, blood, and glucose
2. Serum creatinine and blood urea nitrogen for assessing renal functions
3. Serum electrolytes, i.e. serum sodium and serum potassium
4. Hematocrit
5. Fasting and post-prandial blood glucose for hyperglycemia
6. Serum potassium for hypokalemic alkalosis or diuretic therapy
7. Plasma urea assessment
8. Complete serum lipid profile
9. ECG for left ventricular hypertrophy or ischemia
10. Chest X­ray for assessing the cardiomegaly or heart failure.

“Factors influencing success with systemic hypertension knowledge: Q&A”

2. Special investigations to screen for special groups of patients

1. X­ray chest and echocardiography
2. Intravenous pyelogram and renal ultrasound, if renal the disease is suspected (polycystic disease)
3. Renal arteriography for renal artery stenosis, if it is suspected
4. 24-hour urine catecholamine for pheochromocytoma, if it is suspected
5. Plasma renin activity and aldosterone for Conn’s syndrome, if it is suspected
6. Urinary cortisol and dexamethasone suppression test for Cushing’s syndrome, if it is suspected
7. Angiography/MRI for coarctation of the aorta, if it is suspected.

Question 2. Enumerate the complications and outline the management of systemic hypertension.

Answer.

Systemic hypertension is defined as systolic pressure equal to or above 140 mm Hg and diastolic pressure equal to or above 90 mm Hg measured on two or more different occasions.

Etiology

1. Renal disorders:

1. Renovascular stenosis
2. Parenchymal renal disease, particularly
3. glomerulonephritis
4. Polycystic kidney disease

2. Endocrinal disorders:

1. Pheochromocytoma
2. Cushing’s syndrome
3. Primary hyperaldosteronism
4. Acromegaly
5. Hypothyroidism and hyperthyroidism

3. Drugs:

1. Oral contraceptives
2. Corticosteroids
3. Sympathomimetic drugs
4. Cyclosporine
5. NSAIDs

4. Miscellaneous:

1. Toxemia of pregnancy
2. Coarctation of aorta
3. Raised intracranial pressure
4. Obstructive sleep apnoea.

“Steps to explain systemic hypertension causes: Genetics vs lifestyle vs stress: Q&A guide”

Systemic Hypertension Clinical Features

1. The majority of patients remain asymptomatic and are diagnosed on routine clinical examination.
2. Common symptoms are occipital headache, dizziness, palpitation, and fatigue.
3. Some of the patients may also present with symptoms that are related to target organ damage like epistaxis, hematuria, blurred vision, angina, and breathlessness.
4. Various symptoms pertaining to underlying cause can be present such as weight gain (Cushing’s syndrome), weight loss (thyrotoxicosis), episodic headache, palpitation, and sweating (pheochromocytoma)
5. History taking should include the age, sex, occupation, and lifestyle of the patient along with the history of smoking, diabetes mellitus, hyperlipidemia, alcohol and drug intake, and presence of hypertension in all family members.
6. Physical examination: Presence of truncal obesity (Cushing’s disease), palpable kidneys (polycystic kidneys), radio femoral delay (coarctation of the aorta), recurrent back pain, undiagnosed fever, and recurrent urinary infections suggest (chronic pyelonephritis) abdominal bruit (renovascular), may help in identifying the secondary cause of hypertension.
7. The signs of complications of hypertension such as heaving apex, 4th heart sound, loud aortic second heart sound, pulmonary crackles, and retinal changes may also be present.

“Early warning signs of gaps in understanding systemic hypertension causes: Common questions”

Systemic Hypertension Complications

1. Central nervous system complications:
   • Transient cerebral ischemic attacks
   • Cerebrovascular accidents (strokes)
   • Subarachnoid hemorrhage.
   • Hypertensive encephalopathy is characterized by very high blood pressure, it is characterized by transient disturbances in speech and vision, paresthesias, convulsion, disorientation, loss of consciousness, and papilledema.
   • The neurological symptoms are reversible as blood pressure comes under control.
2. Ophthalmic complications:
   • Hypertensive retinopathy: In this, there is a thickening of the walls of the retinal arterioles, diffuse or segmental narrowing of blood columns, varying width of the light reflex from vessel walls, arteriovenous nipping retinal hemorrhages, soft and hard exudates, and papilledema.
   • Severe retinopathy can cause visual field defects and blindness.
3. Cardiovascular complications:
   • Coronary artery disease (angina, myocardial infarction)
   • Left ventricular failure
   • Aortic aneurysm
   • Aortic dissection
4. Renal complications:
   • Proteinuria
   • Progressive renal failure

“Role of sodium intake in causing systemic hypertension: Questions answered”

5. Malignant hypertension: It is a clinical syndrome of markedly high blood pressure with retinal hemorrhages and exudates. It also includes confusion, headache, vomiting, visual disturbances, and renal function deterioration.

Systemic Hypertension Management

Non Pharmacological Treatment

1. Salt restriction: Modest sodium restriction of 2.4 gm sodium or 6 gm NaCl is effective in controlling hypertension.
2. Weight reduction: In overweight persons, a reduction of 1 kg may reduce 1.6 to 1.3 mm Hg of blood pressure
3. Stop smoking: Smoking raises BP. It is an independent and most important reversible coronary risk factor.
4. Diet:
   1. Lacto­vegetarian diet and high intake of polyunsaturated fish oils have high potassium levels and lower blood pressure by:
   2. Increased sodium extraction
   3. Decreased sympathetic activity
   4. Decreased rennin­angiotensin secretion and direct dilatation of removal of renal arteries
   5. Adequate calcium and magnesium intake should be maintained in the diet
5. Limit of alcohol intake is done
6. Various forms of relaxation like yoga, biofeedback, and psychotherapy lower the blood pressure
7. Regular exercise, relaxation exercise.